flows: cleanup denied view, use everywhere

passbook/core/templates/error/generic.html

@@ -22,8 +22,7 @@
     <div class="pf-c-login__container">
         <header class="pf-c-login__header">
             <img class="pf-c-brand" src="{% static 'passbook/logo.svg' %}" style="height: 60px;" alt="passbook icon" />
-            <img class="pf-c-brand" src="{% static 'passbook/brand.svg' %}" style="height: 60px;"
+            <img class="pf-c-brand" src="{% static 'passbook/brand.svg' %}" style="height: 60px;" alt="passbook branding" />
-                alt="passbook branding" />
         </header>
         <main class="pf-c-login__main" id="flow-body">
             <header class="pf-c-login__main-header">
@@ -50,7 +49,7 @@
                 <li>
                     <a href="https://passbook.beryju.org/">{% trans 'Documentation' %}</a>
                 </li>
-                <!-- todo: load config.passbook.footer.links -->
+                <!-- TODO:load config.passbook.footer.links -->
             </ul>
         </footer>
     </div>

passbook/core/templates/login/denied.html

@@ -1,9 +1,36 @@
-{% extends 'login/base.html' %}
+{% extends 'base/skeleton.html' %}
 
 {% load static %}
 {% load i18n %}
 {% load passbook_utils %}
 
+{% block body %}
+<div class="pf-c-background-image">
+    <svg xmlns="http://www.w3.org/2000/svg" class="pf-c-background-image__filter" width="0" height="0">
+        <filter id="image_overlay">
+            <feColorMatrix type="matrix" values="1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0"></feColorMatrix>
+            <feComponentTransfer color-interpolation-filters="sRGB" result="duotone">
+                <feFuncR type="table" tableValues="0.086274509803922 0.43921568627451"></feFuncR>
+                <feFuncG type="table" tableValues="0.086274509803922 0.43921568627451"></feFuncG>
+                <feFuncB type="table" tableValues="0.086274509803922 0.43921568627451"></feFuncB>
+                <feFuncA type="table" tableValues="0 1"></feFuncA>
+            </feComponentTransfer>
+        </filter>
+    </svg>
+</div>
+<div class="pf-c-login">
+    <div class="pf-c-login__container">
+        <header class="pf-c-login__header">
+            <img class="pf-c-brand" src="{% static 'passbook/logo.svg' %}" style="height: 60px;" alt="passbook icon" />
+            <img class="pf-c-brand" src="{% static 'passbook/brand.svg' %}" style="height: 60px;" alt="passbook branding" />
+        </header>
+        <main class="pf-c-login__main" id="flow-body">
+            <header class="pf-c-login__main-header">
+                <h1 class="pf-c-title pf-m-3xl">
+                    {% trans 'Permission denied' %}
+                </h1>
+            </header>
+            <div class="pf-c-login__main-body">
                 {% block card %}
                     <form method="POST" class="pf-c-form">
                         {% csrf_token %}
@@ -19,3 +46,17 @@
                         {% endif %}
                     </form>
                 {% endblock %}
+            </div>
+        </main>
+        <footer class="pf-c-login__footer">
+            <p></p>
+            <ul class="pf-c-list pf-m-inline">
+                <li>
+                    <a href="https://passbook.beryju.org/">{% trans 'Documentation' %}</a>
+                </li>
+                <!-- TODO: load config.passbook.footer.links -->
+            </ul>
+        </footer>
+    </div>
+</div>
+{% endblock %}

passbook/core/templates/overview/index.html

@@ -50,7 +50,7 @@
             <div class="pf-c-empty-state__body">
                 {% trans "Either no applications are defined, or you don't have access to any." %}
             </div>
-            {% if user.is_superuser %} {# todo: use guardian permissions instead #}
+            {% if user.is_superuser %} {# TODO:use guardian permissions instead #}
             <a href="{% url 'passbook_admin:application-create' %}" class="pf-c-button pf-m-primary" type="button">
                 {% trans 'Create Application' %}
             </a>

passbook/flows/templates/flows/shell.html

@@ -59,7 +59,7 @@
                 <li>
                     <a href="https://passbook.beryju.org/">{% trans 'Documentation' %}</a>
                 </li>
-                <!-- todo: load config.passbook.footer.links -->
+                <!-- TODO:load config.passbook.footer.links -->
             </ul>
         </footer>
     </div>

passbook/policies/mixins.py

@@ -2,7 +2,9 @@
 from typing import Optional
 
 from django.contrib import messages
-from django.http import HttpRequest
+from django.contrib.auth.mixins import AccessMixin
+from django.http import HttpRequest, HttpResponse
+from django.shortcuts import redirect
 from django.utils.translation import gettext as _
 from structlog import get_logger
 
@@ -19,10 +21,14 @@ class BaseMixin:
     request: HttpRequest
 
 
-class PolicyAccessMixin(BaseMixin):
+class PolicyAccessMixin(BaseMixin, AccessMixin):
     """Mixin class for usage in Authorization views.
     Provider functions to check application access, etc"""
 
+    def handle_no_permission_authorized(self) -> HttpResponse:
+        """Function called when user has no permissions but is authorized"""
+        return redirect("passbook_flows:denied")
+
     def provider_to_application(self, provider: Provider) -> Application:
         """Lookup application assigned to provider, throw error if no application assigned"""
         try:

passbook/providers/oauth/views/oauth2.py

@@ -1,7 +1,7 @@
 """passbook OAuth2 Views"""
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.http import HttpRequest, HttpResponse, HttpResponseRedirect
-from django.shortcuts import get_object_or_404, redirect
+from django.shortcuts import get_object_or_404
 from django.views import View
 from oauth2_provider.exceptions import OAuthToolkitError
 from oauth2_provider.scopes import get_scopes_backend
@@ -48,11 +48,11 @@ class AuthorizationFlowInitView(PolicyAccessMixin, LoginRequiredMixin, View):
         try:
             application = self.provider_to_application(provider)
         except Application.DoesNotExist:
-            return redirect("passbook_providers_oauth:oauth2-permission-denied")
+            return self.handle_no_permission_authorized()
         # Check permissions
         result = self.user_has_access(application)
         if not result.passing:
-            return redirect("passbook_providers_oauth:oauth2-permission-denied")
+            return self.handle_no_permission_authorized()
         # Regardless, we start the planner and return to it
         planner = FlowPlanner(provider.authorization_flow)
         planner.allow_empty_flows = True

passbook/providers/oidc/auth.py

@@ -40,11 +40,11 @@ def check_permissions(
     sections/settings.html#oidc-after-userlogin-hook"""
     provider = client_related_provider(client)
     if not provider:
-        return redirect("passbook_providers_oauth:oauth2-permission-denied")
+        return redirect("passbook_flows:denied")
     try:
         application = provider.application
     except Application.DoesNotExist:
-        return redirect("passbook_providers_oauth:oauth2-permission-denied")
+        return redirect("passbook_flows:denied")
     LOGGER.debug(
         "Checking permissions for application", user=user, application=application
     )
@@ -56,7 +56,7 @@ def check_permissions(
     if not result.passing:
         for policy_message in result.messages:
             messages.error(request, policy_message)
-        return redirect("passbook_providers_oauth:oauth2-permission-denied")
+        return redirect("passbook_flows:denied")
 
     plan: FlowPlan = request.session[SESSION_KEY_PLAN]
     Event.new(

passbook/providers/oidc/views.py

@@ -1,7 +1,7 @@
 """passbook OIDC Views"""
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.http import HttpRequest, HttpResponse, JsonResponse
-from django.shortcuts import get_object_or_404, redirect, reverse
+from django.shortcuts import get_object_or_404, reverse
 from django.views import View
 from oidc_provider.lib.endpoints.authorize import AuthorizeEndpoint
 from oidc_provider.lib.utils.common import get_issuer, get_site_url
@@ -41,11 +41,11 @@ class AuthorizationFlowInitView(PolicyAccessMixin, LoginRequiredMixin, View):
         try:
             application = self.provider_to_application(provider)
         except Application.DoesNotExist:
-            return redirect("passbook_providers_oauth:oauth2-permission-denied")
+            return self.handle_no_permission_authorized()
         # Check permissions
         result = self.user_has_access(application)
         if not result.passing:
-            return redirect("passbook_providers_oauth:oauth2-permission-denied")
+            return self.handle_no_permission_authorized()
         # Extract params so we can save them in the plan context
         endpoint = AuthorizeEndpoint(request)
         # Regardless, we start the planner and return to it

passbook/providers/saml/views.py

@@ -2,7 +2,6 @@
 from typing import Optional
 
 from django.contrib.auth.mixins import LoginRequiredMixin
-from django.core.exceptions import PermissionDenied
 from django.core.validators import URLValidator
 from django.http import HttpRequest, HttpResponse
 from django.shortcuts import get_object_or_404, redirect, render, reverse
@@ -54,8 +53,10 @@ class SAMLSSOView(LoginRequiredMixin, PolicyAccessMixin, View):
         self.provider: SAMLProvider = get_object_or_404(
             SAMLProvider, pk=self.application.provider_id
         )
+        if not request.user.is_authenticated:
+            return self.handle_no_permission()
         if not self.user_has_access(self.application).passing:
-            raise PermissionDenied()
+            return self.handle_no_permission_authorized()
         # Call the method handler, which checks the SAML Request
         method_response = super().dispatch(request, *args, application_slug, **kwargs)
         if method_response: